Why have they stopped letting people in? It makes no sense. They're guaranteed millions of dollars in a week. Millions! If my company released a new product, do we delay the sales or the access to those pre-ordered sales, so they can be released in an orderly fashion? People get upset over these things because they, Bioware/EA, are not putting in overtime to keep up with the demand.
When Rift launched, I waited an hour to get on. They added servers all day and night. They worked those long hours to guarantee that the people who wanted to play the game had access to it the day they said the game would be available. They put in those extra hours to stop madness like what is occurring now.
I'm still waiting, on the verge of losing patience, but adding another comment to their forums will not make much of a difference if the management at Bioware doesn't do something and listen to their customers. They said they would have early access on the 15th. Then another letter saying it would start on the 13th, adding an additional 2 days, which sounds awesome. But they should still be working hard adding additional servers throughout this entire day until everyone who pre-ordered is in the game. If that means working an 18 hr day, so be it. That is the way of keeping your customers happy. And right now, they're not keeping their customers happy.